Question

how can we change gas to liquid? ​

Answer 1

by compressing the gas by increasing pressure and decreasing temperature

hope my answer helps you

Answer 2

$\huge\underline{ANSWER:-}$

The Phase changes can be brought about by heating or cooling. For instance,if water (a liquid) is heated enough, it evaporates and becomes water vapor or steam (a gas). This kind of phase change--liquid to gas--is called evaporation or vaporization. Water vapor can in turn be cooled to form liquid water.

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